12655566167 has 2 divisors, whose sum is σ = 12655566168. Its totient is φ = 12655566166.

The previous prime is 12655566163. The next prime is 12655566251. The reversal of 12655566167 is 76166555621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12655566167 - 2² = 12655566163 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12655566163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6327783083 + 6327783084.

It is an arithmetic number, because the mean of its divisors is an integer number (6327783084).

Almost surely, 2^12655566167 is an apocalyptic number.

12655566167 is a deficient number, since it is larger than the sum of its proper divisors (1).

12655566167 is an equidigital number, since it uses as much as digits as its factorization.

12655566167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268000, while the sum is 50.

The spelling of 12655566167 in words is "twelve billion, six hundred fifty-five million, five hundred sixty-six thousand, one hundred sixty-seven".